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Intel X.Org Driver Update Gets New Features

Phoronix: Intel X.Org Driver Update Gets New Features

Chris Wilson of Intel OTC announced the release of the xf86-video-intel 2.21.4 X.Org driver on Monday morning. This new driver has clumsy PowerXpress integration, run-time detection of available CPU instruction sets, Haswell fix-ups, and more work on the SNA acceleration architecture...

Are you talking now of some sort of firmware that is upgradable like in, say, CD-players?

The cpu would not function without the microcode. They burn in one version at the factory, and you can update it temporarily at runtime (this update can be done both by your BIOS and by the OS), effective until a reboot.

You are using the factory-built-in version of it.

What I am missing if the microcode blob is not updated?

Bugfixes and possible performance improvements. What exactly is kept secret, but both Intel and AMD come with a steady stream of updates for their microcode, for the life of a cpu.